CN110267427B - Power board assembly for cooking device and cooking device - Google Patents
Power board assembly for cooking device and cooking device Download PDFInfo
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- CN110267427B CN110267427B CN201810200446.7A CN201810200446A CN110267427B CN 110267427 B CN110267427 B CN 110267427B CN 201810200446 A CN201810200446 A CN 201810200446A CN 110267427 B CN110267427 B CN 110267427B
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- circuit board
- fan
- air outlet
- cooking device
- air
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
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- Microelectronics & Electronic Packaging (AREA)
- Food Science & Technology (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
The invention discloses a power board assembly for a cooking device and the cooking device, wherein the power board assembly comprises: the circuit board assembly comprises a circuit board support and a circuit board, the circuit board support extends along the up-down direction, and the circuit board is arranged on one side surface of the circuit board support; the radiator is arranged on the upper part of one side surface of the circuit board, which is back to the circuit board bracket; and the fan is arranged on the circuit board bracket, and the fan and the radiator are arranged side by side along the left-right direction. According to the power board assembly for the cooking device, the fan and the radiator are arranged side by side along the left and right directions, so that the overall height of the power board assembly is reduced, the requirement on the overall installation space is greatly reduced, and the miniaturization of the cooking device is facilitated.
Description
Technical Field
The invention relates to the technical field of cooking devices, in particular to a power board assembly for a cooking device and the cooking device.
Background
The power board of the cooking device in the related art is assembled, the fan is installed above the radiator, namely, the fan and the radiator are stacked on the edge of the circuit board along the up-down direction, so that the overall height of the power board is high, the requirement on the overall installation space is high, and the spaces on two sides of the radiator on the circuit board are not effectively utilized, and the miniaturization of products is not facilitated.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a power board assembly for a cooking device, which has a compact structure and a low overall height and is beneficial to realizing the miniaturization of the cooking device.
The invention also provides a cooking device with the power board assembly.
According to an embodiment of a first aspect of the present invention, a power board assembly for a cooking apparatus includes: the circuit board assembly comprises a circuit board support and a circuit board, wherein the circuit board support and the circuit board extend along the vertical direction, and the circuit board is arranged on the surface of one side of the circuit board support; the radiator is arranged on the upper part of one side surface of the circuit board, which faces away from the circuit board bracket; and the fan is arranged on the circuit board bracket, and the fan and the radiator are arranged side by side along the left-right direction.
According to the power board assembly for the cooking device, the radiator is arranged on the circuit board, the fan is arranged on the circuit board support, the fan and the radiator are arranged side by side along the left-right direction, the overall height of the power board assembly is favorably reduced, compared with an installation mode that the fan and the radiator are fixed on the circuit board in an overlapping mode in the related art, the requirement for the overall installation space is greatly reduced, and the miniaturization of the cooking device is favorably realized.
According to one embodiment of the invention, the distance between the top of the fan and the top of the heat sink is less than or equal to 10 mm.
According to an embodiment of the present invention, the circuit board is reserved with a notch for accommodating the fan, and the notch is located on the left side or the right side of the heat sink, and the power board assembly further includes: the EMC filtering module is arranged on one side surface of the circuit board, which is back to the circuit board bracket, and is positioned right below the notch, the EMC filtering module comprises a filtering capacitor, and the length direction of the filtering capacitor is perpendicular to the edge of the upper side of the circuit board; and the power supply terminal is arranged at the left side edge of the circuit board and is close to the EMC filtering module.
According to an embodiment of the invention, the heat sink is provided in a middle region of an upper portion of a side surface of the circuit board facing away from the circuit board support.
Optionally, a right side region of an upper portion of a side surface of the circuit board facing away from the circuit board support is provided with a coil panel connection terminal, wherein the heat sink and the coil panel connection terminal are both adjacent to an upper side edge of the circuit board; and/or, the back of circuit board one side surface of circuit board support still is equipped with resonance capacitance and smoothing filter capacitance, resonance capacitance with smoothing filter capacitance all is located under coil panel binding post, just resonance capacitance establishes coil panel binding post with between the smoothing filter capacitance.
Further, the power board assembly further includes: and the differential mode inductor is arranged on the surface of one side of the circuit board, which is back to the circuit board support, and is positioned right below the radiator.
According to one embodiment of the invention, the fan has an air inlet side and an air outlet side, the air inlet side being located at an axial end of the fan and the air outlet side being located at an axial side of the fan, the rotational axis of the fan extending in an up-down direction.
Optionally, the fan is a turbo fan or a centrifugal fan, and an air outlet direction of at least a portion of the air outlet side is consistent with an extending direction of the heat dissipation fins of the heat sink.
Optionally, a first air outlet and a second air outlet are arranged on the air outlet side, the first air outlet faces the coil panel of the cooking device to radiate heat of the coil panel, the second air outlet faces the radiator to radiate heat of the radiator, a first air deflector extending in the up-down direction is arranged at the edge of the right side of the circuit board support, and the air flow blown to the radiator by the fan flows through the radiator and then is guided to the coil panel of the cooking device through the first air deflector; and/or a second air deflector extending along the left-right direction is arranged at the edge of the upper side of the circuit board support, and the second air deflector is positioned right above the radiator.
A cooking apparatus according to an embodiment of a second aspect of the present invention includes the power board assembly for a cooking apparatus according to the above-described embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a power board assembly for a cooking apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of the power board assembly of FIG. 1 with the circuit board bracket and fan removed;
fig. 3 is a top view of the structure shown in fig. 2.
Reference numerals:
the power board assembly 100 is assembled with a power board,
a circuit board assembly 10 is provided which includes,
a circuit board support 11, a first air guiding plate 111, a second air guiding plate 112, a supporting plate 113, an elastic hook 1131,
the number of the circuit board 12, the notch 13,
the heat sink 20, the power device 21,
the fan 30, the air inlet side 301, the air outlet side 302, the first fastening portion 311, the first slot 3110, the second fastening portion 312, the second slot 3120,
an EMC filter module 40, a filter capacitor 41, a power supply terminal 50, a coil disc connection terminal 60,
a resonant capacitor 70, a smoothing filter capacitor 80, and a differential mode inductor 90.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A power board assembly 100 for a cooking apparatus according to an embodiment of the present invention is described below with reference to fig. 1 to 3.
As shown in fig. 1 to 3, a power board assembly 100 for a cooking apparatus according to one embodiment of the present invention includes: circuit board assembly 10, heat sink 20, and fan 30.
The circuit board assembly 10 includes a circuit board support 11 and a circuit board 12, the circuit board support 11 and the circuit board 12 both extend in the up-down direction, and the circuit board 12 is disposed on a side surface of the circuit board support 11 and extends in the up-down direction. The heat sink 20 is mounted on an upper portion of a surface of the circuit board 12 on a side facing away from the circuit board holder 11. The fan 30 is mounted to the circuit board support 11, and the fan 30 and the heat sink 20 are arranged side by side in the left-right direction.
According to the power board assembly 100 for the cooking device of the embodiment of the invention, the radiator 20 is arranged on the circuit board 12, the fan 30 is arranged on the circuit board support 11, the fan 30 and the radiator 20 are arranged side by side along the left and right direction, the overall height of the power board assembly 100 is favorably reduced, compared with the installation mode that the fan and the radiator are fixed on the circuit board in an overlapping mode in the related art, the requirement of the overall installation space is greatly reduced, and the miniaturization of the cooking device is favorably realized.
In some examples, the distance between the top of the fan 30 and the top of the heat sink 20 is less than or equal to 10 mm. That is, the height of the fan 30 is the same as that of the heat sink 20 or the difference in height between the two is 10mm or less.
This ensures that most of the air flow generated by the fan 30 is blown toward the heat sink 20, thereby improving the heat dissipation efficiency of the fan 30, and compared with the mounting method in which the fan and the heat sink are fixed on the circuit board in an overlapping manner in the related art, the overall height of the power board assembly 100 is reduced, the requirement for the overall mounting space is reduced, and the miniaturization of the product is facilitated.
According to an embodiment of the present invention, a notch 13 for accommodating the fan 30 is reserved on the upper left portion of the circuit board 12, and the notch 13 is located on the left side of the heat sink 20. When the fan 30, the heat sink 20 and the circuit board assembly 10 are assembled, the fan 30 and the heat sink 20 are arranged side by side along the left-right direction, which is favorable for reducing the size of the power board assembly 100 along the up-down direction, i.e. reducing the overall height of the power board assembly 100, compared with the installation manner that the fan and the heat sink in the related art are stacked, thereby reducing the occupied space of the power board assembly 100 and being favorable for realizing the miniaturization of the cooking device.
It can be understood that the notch 13 is reserved at the upper left portion of the circuit board 12, and the notch 13 can also be reserved at the position of the circuit board support 11 corresponding to the notch 13, so that the fan 30 can be directly placed at the notch 13 of the circuit board support 11 and connected with the circuit board support 11 during assembly, which is beneficial to realizing positioning and installation, thereby improving the assembly efficiency of the power board assembly 100.
Of course, the position of the notch 13 on the circuit board 12 is not limited to this, for example, the upper right portion of the circuit board 12 may reserve the notch 13 for accommodating the fan 30, so that the notch 13 is located on the right side of the heat sink 20, and the fan 30 is disposed on the right side of the heat sink 20.
In some examples, the power board assembly 100 further includes: EMC filter module 40, EMC filter module 40 locate the side surface of circuit board 12 that faces away from circuit board support 11, and radiator 20 and EMC filter module 40 install in the same side surface of circuit board 12 promptly, and EMC filter module 40 is located breach 13 under, during the equipment, and the location is accurate, is favorable to improving the packaging efficiency.
As shown in fig. 2 and 3, in some specific examples, the EMC filter module 40 includes a filter capacitor 41, a length direction of the filter capacitor 41 is perpendicular to an upper side edge of the circuit board 12, that is, after the filter capacitor 41 is assembled with the circuit board 12, the upper side edge of the circuit board 12 at the notch 13 extends along a horizontal direction (a left-right direction as shown in fig. 3), and the length direction of the filter capacitor 41 extends along an up-down direction.
In some examples, the power board assembly 100 further includes: the power supply terminal 50 and the power supply terminal 50 are arranged at the left side edge or the right side edge of the circuit board 12 and are closely adjacent to the EMC filter module 40, namely, the power supply terminal 50 is positioned at the left side of the EMC filter module 40, and during assembly, the positioning is accurate, so that the assembly efficiency is improved, and the space at the left side edge of the circuit board 12 is effectively utilized, so that the miniaturization of the cooking device is realized.
It should be noted that the power terminal 50 and the notch 13 may be located on the same side of the heat sink 20, that is, the notch 13 is located on the upper left of the circuit board 12, and the power terminal 50 is located on the left edge of the circuit board 13, or the notch 13 is located on the upper right of the circuit board 12, and the power terminal 50 is located on the right edge of the circuit board 13; the positions of the power terminals 50 and the notches 13 may also be located on opposite sides of the heat sink 20, for example, the notch 13 is located on the upper left portion of the circuit board 12, and the power terminals 50 are located on the right edge of the circuit board 13, which may be arranged as required.
According to an embodiment of the invention, the heat sink 20 is provided in a middle area of an upper portion of a side surface of the circuit board 12 facing away from the circuit board holder 11. Further, the right side area of the upper portion of the side surface of the circuit board 12 facing away from the circuit board support 11 is provided with the coil panel wiring terminal 60, that is, the coil panel wiring terminal 60 is located on the right side of the heat sink 20, and during assembly, the positioning is accurate, which is beneficial to improving the assembly efficiency, and the layout is reasonable. Furthermore, the right area of the circuit board 12 on the radiator 20 is effectively utilized, which is advantageous for realizing the miniaturization of the cooking device.
In some specific examples, the heat sink 20 and the coil disk terminals 60 are both proximate the upper side edge of the circuit board 12. The heat sink 20 is provided with a power device 21, such as an IGBT (insulated gate bipolar transistor), a bridge stack, etc., the power device 21 is mounted on the circuit board 12, and the heat sink 20 can guide heat of the power device 21 to the outside, so as to dissipate heat of the power device 21; by placing the coil disk connection terminals 60 in close proximity to the upper side edge of the circuit board 12, connection with the connection wires of the coil disk of the cooking appliance can be facilitated.
In some examples, a side surface of the circuit board 12 facing away from the circuit board support 11 is further provided with a resonance capacitor 70 and a smoothing filter capacitor 80, the resonance capacitor 70 and the smoothing filter capacitor 80 are both located directly below the coil panel connection terminals 60, and the resonance capacitor 70 is provided between the coil panel connection terminals 60 and the smoothing filter capacitor 80.
Specifically, coil panel wiring terminals 60, resonant capacitor 70 and smoothing filter capacitor 80 are all arranged on the same side surface of circuit board 12, coil panel wiring terminals 60, resonant capacitor 70 and smoothing filter capacitor 80 are sequentially arranged at positions close to the right side edge of circuit board 12 along the up-down direction, and resonant capacitor 70 and smoothing filter capacitor 80 are all parallel to the upper side edge of circuit board 12, so that during assembly, positioning is accurate, and assembly efficiency is improved.
According to a further example of the present invention, the power board assembly 100 further includes: differential mode inductance 90, differential mode inductance 90 locate the surface of one side of circuit board 12 that faces away from circuit board support 11 and lie in under radiator 20, and differential mode inductance 90 is located the middle part region of circuit board 12 promptly, and further, EMC filter module 40 is located the left side of differential mode inductance 90, and smooth filter capacitance 80 is located the right side of differential mode inductance 90, and during the equipment, the location is accurate, is favorable to improving the packaging efficiency.
In operation of the fan 30, the blades rotate about a fixed axis, thereby creating an airflow. As shown in fig. 1, according to one embodiment of the present invention, the fan 30 has an air inlet side 301 and an air outlet side 302, the air inlet side 301 is located at an axial end of the fan 30 and the air outlet side 302 is located at an axial side of the fan 30, and a rotational axis of the fan 30 extends in an up-down direction. The term "axial end" is understood herein to mean the axial end of the fan 30 extending along the fixed axis, i.e. the air flow enters along the fixed axis, and the term "axial side" is understood to mean the side peripheral wall of the fan 30, i.e. the annular surface swept by the blade ends when the blades rotate about the fixed axis, along which the air flow flows from inside to outside during operation and is finally flung away from the annular surface.
The air inlet side 301 of the fan 30 is arranged at the shaft end of the fan 30, and the air outlet side 302 is arranged at the shaft side of the fan 30, so that a vertical air inlet and outlet mode of horizontal air outlet is formed, air flow generated by the fan 30 can be blown to a coil panel (not shown) and a radiator 20 of the cooking device at the same time, the coil panel and the radiator 20 are cooled at the same time, the overall height of the power panel assembly 100 can be reduced, the installation space requirement of the power panel assembly 100 is reduced, and the miniaturization of the cooking device is facilitated.
In some examples, the fan 30 is a turbofan or a centrifugal fan, and has a simple structure, and can realize the air inlet and outlet form of vertical air inlet and horizontal air outlet, so as to meet the requirements, thereby being beneficial to realizing the miniaturization of the cooking device.
In some examples, at least a portion of the air-out side 302 faces the heat sink 20, and at least a portion of the air-out side 302 has an air-out direction that coincides with an extending direction of the fins of the heat sink 20. Specifically, the heat sink 20 has a plurality of fins arranged at intervals, each fin extends in the left-right direction and is parallel to the circuit board 12, an air outlet duct is defined by two adjacent fins, and at least a part of the air outlet direction of the air outlet side is consistent with the direction of the air outlet duct, so that airflow loss is prevented, the airflow flowing speed in the air outlet duct is increased, and the heat dissipation efficiency of the fan 30 is improved.
The electromagnetic heating electric cooker and the electric pressure cooker in the related technology have only one air outlet direction of the fan, mainly blow to the radiator on the circuit board, and then guide the wind to the coil panel by arranging the air deflector. The inventor finds that the air duct increases the flow resistance of the wind and reduces the heat dissipation efficiency.
Based on this, in some examples, the air-out side 302 includes at least two air outlets, including: a first air outlet and a second air outlet. The first outlet is directed toward the coil panel of the cooking apparatus to radiate heat to the coil panel, and the second outlet is directed toward the heat sink 20 to radiate heat to the heat sink 20. Set up two at least air outlets through the air-out side 302 at fan 30, the air current that makes fan 30 produce can be simultaneously and all blow to coil panel and radiator 20 to dispel the heat to coil panel and radiator 20 simultaneously, increase heat dissipation area has promoted the utilization ratio of the air current that fan 30 produced, and then improves fan 30's radiating efficiency.
In some examples, the area of the first air outlet is smaller than that of the second air outlet, that is, the amount of air blown to the coil panel is smaller than that of the heat sink 20, thereby achieving distribution of the air volume. It should be noted that the area of the first air outlet is an effective air outlet area of the first air outlet, and if the first air outlet includes a plurality of air outlet holes, the area of the first air outlet is a sum of areas of the plurality of air outlet holes, and if the first air outlet includes only one air outlet hole, the area of the first air outlet is an area of one air outlet hole. Similarly, the area of the second outlet is the effective air outlet area of the second outlet, and is not described herein again.
In some examples, at least one of the first outlet and the second outlet is adjustable in outlet area. For example, the effective air outlet area of the first air outlet is adjustable, or the effective air outlet area of the second air outlet is adjustable, and then the effective air outlet areas of the first air outlet and the second air outlet are adjustable. At least one air outlet area of the first air outlet and the second air outlet is set to be adjustable, so that the air quantity can be distributed, and the heat dissipation efficiency of the fan 30 to the coil panel and the heat sink 20 is further adjusted.
In some examples, the angle between the line connecting the first air outlet and the center of the fan 30 and the angle between the second air outlet and the center of the fan 30 are α, and α is greater than 15 ° and less than 150 °.
From this, the air-out region of fan 30 is fan-shaped distribution to coil panel and radiator 20 to dispel the heat to coil panel and radiator 20 respectively, and follow the flow distance increase, the air current of following from first air outlet and second air outlet discharge is outwards diffused gradually, is favorable to improving the radiating efficiency.
Preferably, 60 ° < α < 120 °. That is, the angle between the connection line between the outermost boundary of the first outlet and the outermost boundary of the second outlet and the center of the fan 30 is 60 ° to 120 °, so as to realize the distribution of the air volume.
According to a further embodiment of the present invention, at least one air guiding plate is disposed at the first air outlet for guiding a portion of the airflow generated by the fan 30 to the coil panel. Through set up at least one guide vane in first air outlet department, not only can cut apart into a plurality of exhaust vents with first air outlet, realize the distribution of amount of wind, can also change the air-out direction of first air outlet to with the air current that fan 30 produced the different positions of coil panel.
In some examples, the first air outlet is provided with a plurality of air deflectors, the plurality of air deflectors are arranged at intervals along the width direction of the first air outlet, and a part of air flow generated by the fan 30 is blown to the first air outlet and is blown to the coil panel in a fan shape under the guiding action of the plurality of air deflectors, so that the heat dissipation area of the fan 30 to the coil panel is increased, and the heat dissipation efficiency is improved.
In some examples, the setting angle of the air guiding sheet is adjustable, that is, the air outlet direction of the air outlet holes of the first air outlet is adjustable, so that the air guiding sheet can adjust the direction of the air flow according to different angle requirements, for example, the air guiding sheet can control the air outlet direction, so that the air outlet area covers the radiator 20, the left side of the coil panel and the right side of the coil panel, and thus a part of the air flow generated by the fan 30 is guided to any position of the coil panel where the temperature controller is located, so as to avoid the setting area of the temperature controller, and prevent the air flow blown to the coil panel from affecting the temperature sensing effect of the temperature controller.
In some examples, the length of the wind-guiding sheet is L, and L is more than or equal to 3mm and less than or equal to 20 mm. For example, the length L of the air-guiding sheet is 3mm, 5mm, 8mm, 10mm, 15mm, 20mm, and the like, and specifically, the length of the air-guiding sheet can be adjusted according to the distance between the fan 30 and the coil panel, so that the air discharged from the first air outlet can be guided by the air-guiding sheet, and can be completely blown to the coil panel, and the heat dissipation efficiency of the fan 30 is further improved. Preferably, L is more than or equal to 5mm and less than or equal to 10mm, and the heat dissipation efficiency is higher.
In some examples, the right edge of the circuit board support 11 is provided with a first wind deflector 111 extending in the up-down direction, and the airflow blown by the fan 30 toward the heat sink 20 flows through the heat sink 20 and is guided to the coil panel of the cooking device by the first wind deflector 111. That is, the fan 30, the heat sink 20, and the first air deflector 111 are arranged side by side on the circuit board assembly 10, and the heat sink 20 is disposed on the axial side of the fan 30 and between the fan 30 and the first air deflector 111.
When the air conditioner works, air is blown out from the side of the fan 30, that is, at least a part of the airflow of the fan 30 flows toward the radiator 20 and the coil panel, so that the airflow around the radiator 20 and the coil panel is accelerated, the first air deflector 111 is arranged at one side of the radiator 20, a part of the airflow generated by the fan 30 flows through the radiator 20, the first air deflector 111 guides the airflow flowing through the radiator 20 to the coil panel, so that the airflow around the coil panel is further accelerated, and the working heat of the coil panel is reduced.
In some examples, the upper side edge of the circuit board support 11 is provided with a second air deflector 112 extending in the left-right direction, and the second air deflector 112 is located directly above the heat sink 20. The second air guiding plate 112 can guide the airflow generated by the fan 30, so that the airflow is directly blown to the heat sink 20 and the first air guiding plate 111.
Referring to fig. 1, a fan 30 and a heat sink 20 are disposed side by side in a left-right direction on an upper portion of a circuit board assembly 10, the heat sink 20 is located on a right side of the fan 30, a first air deflector 111 is mounted on the right side of the heat sink 20 and extends toward a coil panel to guide an air flow flowing through the heat sink 20 to the coil panel, a second air deflector 112 is mounted on a top of the heat sink 20, and a plane of the second air deflector 112 is not higher than the fan 30, so as to guide an air flow generated by the fan 30, so that the air flow is directly blown to the heat sink 20 and the first air deflector 111, thereby preventing an air flow loss generated by the fan 30 and effectively utilizing the air flow generated by the fan 30 to dissipate heat.
In some examples, the fan 30 includes a fan base provided with a first slot 3110 and a second slot 3120, each of the first slot 3110 and the second slot 3120 extending linearly, and a fan body mounted on the fan base.
Further, the circuit board support 11 includes a support plate 113 for supporting the fan 30, the fan 30 is mounted on one side surface of the support plate 113, one side edge of the support plate 113 is adapted to be inserted into the first slot 3110 and the other side edge of the support plate 113 is adapted to be inserted into the second slot 3120. Further, one of the support plate 113 and the fan base is provided with a clamping groove, and the other of the support plate 113 and the fan base is provided with a clamping protrusion matched with the clamping groove.
Through setting up first slot 3110 and second slot 3120 on the fan base, make two sides of backup pad 113 insert respectively in the first slot 3110 and the second slot 3120 of corresponding position, realize the location installation of fan 30 on circuit board support 11, the difficult problem of anomalous fan 30 orientation installation such as circular has been solved, then through the cooperation of draw-in groove and card arch, can jack up the fan 30 after the location, prevent that fan 30 from deviating from and taking place the shake, further guarantee the stable installation of fan 30 on circuit board support 11.
According to an embodiment of the present invention, the fan base is provided with a first catch 311 and a second catch 312 arranged at an interval, the first slot 3110 is defined by the first catch 311 and the fan base, and the second slot 3120 is defined by the second catch 312 and the fan base.
Specifically, the first catch 311 and the second catch 312 may be respectively formed to extend in a long shape along a linear direction, so that the first catch 311 and the fan base define a first slot 3110 extending linearly, the second catch 312 and the fan base define a second slot 3120 extending linearly, and two side edges of the supporting plate 113 of the circuit board support 11 are respectively inserted into the first slot 3110 and the second slot 3120.
Therefore, the first buckling position 311 and the second buckling position 312 are arranged on the fan base, so that the first buckling position 311 and the second buckling position 312 respectively define a first slot 3110 and a second slot 3120 which extend linearly with the fan base, and the first buckling position 311 and the second buckling position 312 are matched with the supporting plate 113 of the circuit board support 11, thereby realizing the positioning and installation of the fan base on the supporting plate 113.
Of course, the structures of the first fastening portion 311 and the second fastening portion 312 are not limited thereto, and the first fastening portion 311 and the second fastening portion 312 may also be formed in irregular shapes, and may define a linearly extending slot with the fan base.
According to an alternative embodiment of the present invention, the first slot 3110 and the second slot 3120 are oppositely and parallel arranged, and two oppositely arranged side edges of the support plate 113 are inserted into the first slot 3110 and the second slot 3120, respectively.
Specifically, as shown in fig. 1, the supporting plate 113 is formed as a rectangular plate extending in a vertical direction (a direction perpendicular to the circuit board 12), the fan 30 is mounted on a side surface of the supporting plate 113, a first fastening portion 311 and a second fastening portion 312 are arranged on a side of the fan base facing the supporting plate 113 at a left-right interval, the first fastening portion 311 is arranged on a right side of the second fastening portion 312, the first fastening portion 311 and the fan base define a first slot 3110 extending in a linear direction, the second fastening portion 312 and the fan base define a second slot 3120 extending in the linear direction, a right side of the supporting plate 113 is inserted into the first slot 3110, and a left side of the supporting plate 113 is inserted into the second slot 3120, so that the supporting plate 113 is inserted between the first fastening portion 311 and the second fastening portion 312, and the mounting is more reliable.
In some examples, the clamping groove is formed on the side of the fan base facing the support plate 113, and the clamping protrusion is formed on the support plate 113. After the fan 30 is installed, the supporting plate 113 is located between the first fastening portion 311 and the second fastening portion 312, so that two opposite sides of the supporting plate 113 are respectively inserted into the first slot 3110 and the second slot 3120, and at least a portion of the locking protrusion on the supporting plate 113 is inserted into the locking slot of the fan base, thereby lifting up the fan 30 and preventing the fan 30 from coming off and shaking.
In some specific examples, the support plate 113 is provided with an elastic hook 1131, one end of the elastic hook 1131 is connected with the support plate 113 and the other end of the elastic hook 1131 forms a free end, and the clamping protrusion is formed on a side surface of the free end facing the fan base. By arranging the elastic hooks 1131 on the supporting plate 113, the positions of the locking protrusions of the elastic hooks 1131 can be adjusted as required when the fan 30 is assembled with the supporting plate 113, so as to ensure the smooth assembly of the supporting plate 113 and the fan 30. In addition, the assembled power board assembly 100 can be elastically deformed by the elastic hooks 1131, so as to adjust the locking protrusions at a proper time and prevent the fan 30 from being separated from the supporting plate 113.
Preferably, the number of the resilient catches 1131 is at least three.
In some examples, the convex card and the slot are in interference fit, and the convex card and the slot are assembled together in the interference fit manner, so that the fan 30 can be jacked up, the convex card can be prevented from being separated from the slot, and the installation stability of the support plate 113 of the fan 30 on the circuit board support 11 can be ensured.
In some examples, two spaced fastening slots are disposed on a side of the fan base facing the support plate 113, two elastic hooks 1131 corresponding to the fastening slots are disposed on the support plate 113, and a free end of each elastic hook 1131 is provided with a fastening protrusion, so that by using the two fastening slots to cooperate with the two elastic hooks 1131, the connection reliability between the fan 30 and the support plate 113 can be further ensured.
According to an embodiment of the present invention, the card slot includes at least two and an arrangement direction of the at least two card slots is not parallel to an extension direction of at least one of the first slot 3110 and the second slot 3120. Therefore, the fan 30 can be positioned and installed from different directions, and the connection reliability of the fan 30 and the circuit board support 11 is further ensured.
According to another alternative embodiment of the present invention, the extending direction of the first slot 3110 is not parallel to the extending direction of the second slot 3120.
For example, a right portion of a side surface of the fan base facing the support plate 113 is provided with a first catch 311 extending in a vertical direction (i.e., a direction perpendicular to the circuit board 12), a first slot 3110 extending in a linear direction is defined between the first catch 311 and the fan base, and a right side edge of the support plate 113 is inserted into the first slot 3110; the upper portion of the side surface of the fan base facing the support plate 113 is provided with a second catch 312 extending in a horizontal direction (i.e., a left-right direction), a second slot 3120 extending in the left-right direction is defined between the second catch 312 and the fan base, and the upper side of the support plate 113 is inserted into the second slot 3120.
Therefore, by arranging the first slot 3110 and the second slot 3120 which are not parallel to each other on the fan base, the fan 30 can be positioned from different directions, and the connection reliability of the fan 30 and the circuit board support 11 is further ensured.
In some examples, the card slot is disposed on a side of the support plate 113 facing the fan base, and the card is disposed on the fan base and protrudes from a surface of the fan base facing the support plate 113. Optionally, two or more than two clamping protrusions may be disposed on the fan base, and correspondingly, a plurality of (two or more than two) clamping slots are disposed on the supporting plate 113, that is, the number of the clamping protrusions on the fan base is equal to the number of the clamping slots on the supporting plate 113, thereby further ensuring the reliability and stability of the connection between the fan 30 and the circuit board support 11.
In some examples, the convex card and the slot are in interference fit, and the convex card and the slot are assembled together in the interference fit manner, so that the fan 30 can be jacked up, the convex card can be prevented from being separated from the slot, and the installation stability of the support plate 113 of the fan 30 on the circuit board support 11 can be ensured.
A cooking apparatus according to an embodiment of the present invention includes the power board assembly 100 for a cooking apparatus according to the above-described embodiment. The cooking device can be an IH electric cooker, an electric pressure cooker and the like.
Since the power board assembly 100 for a cooking apparatus according to the embodiment of the present invention has the above technical effects, the cooking apparatus according to the embodiment of the present invention also has the above technical effects, that is, by using the above power board assembly 100, compared with the installation manner in which the fan and the heat sink are overlapped and fixed on the circuit board in the related art, the requirement of the whole installation space can be greatly reduced, which is beneficial to realizing the miniaturization of the cooking apparatus.
Other constructions and operations of the cooking apparatus according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A power board assembly for a cooking device, comprising:
the circuit board assembly comprises a circuit board support and a circuit board, wherein the circuit board support and the circuit board extend along the vertical direction, and the circuit board is arranged on the surface of one side of the circuit board support;
the radiator is arranged on the upper part of one side surface of the circuit board, which faces away from the circuit board bracket;
the fan is mounted on the circuit board support, and the fan and the radiator are arranged side by side along the left-right direction;
the fan is provided with an air inlet side and an air outlet side, the air outlet side is provided with a first air outlet and a second air outlet, the first air outlet faces towards a coil panel of the cooking device to radiate heat of the coil panel, the second air outlet faces towards the radiator to radiate heat of the radiator, and at least one air outlet area of the first air outlet and the second air outlet is adjustable;
the fan comprises a fan base and a fan body installed on the fan base, the fan base is provided with a first slot and a second slot, the first slot and the second slot extend linearly, the circuit board support comprises a supporting plate used for supporting the fan, the fan is installed on the surface of one side of the supporting plate, one side of the supporting plate is suitable for being inserted into the first slot, and the other side of the supporting plate is suitable for being inserted into the second slot.
2. The power board assembly for a cooking device as claimed in claim 1, wherein a distance between a top of the fan and a top of the heat sink is 10mm or less.
3. The power board assembly for a cooking device as claimed in claim 1, wherein the circuit board is reserved with a notch for accommodating the fan, and the notch is located at the left or right side of the heat sink,
the power board assembly further includes:
the EMC filtering module is arranged on one side surface of the circuit board, which is back to the circuit board bracket, and is positioned right below the notch, the EMC filtering module comprises a filtering capacitor, and the length direction of the filtering capacitor is perpendicular to the edge of the upper side of the circuit board;
and the power supply terminal is arranged at the left side edge or the right side edge of the circuit board and is closely adjacent to the EMC filtering module.
4. The power board assembly for a cooking apparatus as set forth in any one of claims 1 to 3, wherein the heat sink is provided in a middle area of an upper portion of a side surface of the circuit board facing away from the circuit board support.
5. The power board assembly for a cooking apparatus as set forth in claim 4, wherein a right side area of an upper portion of a side surface of the circuit board facing away from the circuit board support is provided with a coil panel connection terminal,
the radiator and the coil panel wiring terminal are adjacent to the upper side edge of the circuit board; and/or, the back of circuit board one side surface of circuit board support still is equipped with resonance capacitance and smoothing filter capacitance, resonance capacitance with smoothing filter capacitance all is located under coil panel binding post, just resonance capacitance establishes coil panel binding post with between the smoothing filter capacitance.
6. The power board assembly for a cooking device as claimed in claim 4, further comprising: and the differential mode inductor is arranged on the surface of one side of the circuit board, which is back to the circuit board support, and is positioned right below the radiator.
7. The power board assembly for a cooking device as set forth in claim 1, wherein the air inlet side is located at an axial end of the fan and the air outlet side is located at an axial side of the fan, and a rotational axis of the fan extends in an up-down direction.
8. The power board assembly for a cooking device as claimed in claim 7, wherein the fan is a turbo fan or a centrifugal fan, at least a portion of the air outlet side faces the heat sink, and the air outlet direction of at least a portion of the air outlet side coincides with the extending direction of the heat dissipating fins of the heat sink.
9. The power board assembly as claimed in claim 7, wherein the right side edge of the circuit board support is provided with a first air deflector extending in an up-down direction, and the air flow blown by the fan toward the heat sink is guided to the coil panel of the cooking device through the first air deflector after flowing through the heat sink; and/or a second air deflector extending along the left-right direction is arranged at the edge of the upper side of the circuit board support, and the second air deflector is positioned right above the radiator.
10. A cooking apparatus comprising the power board assembly for a cooking apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200446.7A CN110267427B (en) | 2018-03-12 | 2018-03-12 | Power board assembly for cooking device and cooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200446.7A CN110267427B (en) | 2018-03-12 | 2018-03-12 | Power board assembly for cooking device and cooking device |
Publications (2)
| Publication Number | Publication Date |
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| CN110267427A CN110267427A (en) | 2019-09-20 |
| CN110267427B true CN110267427B (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200446.7A Active CN110267427B (en) | 2018-03-12 | 2018-03-12 | Power board assembly for cooking device and cooking device |
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| CN (1) | CN110267427B (en) |
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| JPH02134110A (en) * | 1988-11-16 | 1990-05-23 | Matsushita Electric Ind Co Ltd | Cooking apparatus |
| CN203016706U (en) * | 2012-11-22 | 2013-06-26 | 美的集团股份有限公司 | Cooling device used for electric rice cooker and electric rice cooker provided with the same |
| CN103445669A (en) * | 2013-08-31 | 2013-12-18 | 广东洛贝电子科技有限公司 | Electromagnetic electric-pressure cooker |
| CN203563256U (en) * | 2013-10-08 | 2014-04-23 | 美的集团股份有限公司 | PCB board and household electrical appliance provided with same |
| CN104042119A (en) * | 2014-05-30 | 2014-09-17 | 深圳市鑫汇科股份有限公司 | IH rice cooker main control module and mainboard support |
| CN106642237A (en) * | 2016-12-29 | 2017-05-10 | 宁波方太厨具有限公司 | Electromagnetic range |
| CN208658908U (en) * | 2018-03-12 | 2019-03-29 | 佛山市顺德区美的电热电器制造有限公司 | Power panel portion for cooker is filled with and cooker |
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2018
- 2018-03-12 CN CN201810200446.7A patent/CN110267427B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02134110A (en) * | 1988-11-16 | 1990-05-23 | Matsushita Electric Ind Co Ltd | Cooking apparatus |
| CN203016706U (en) * | 2012-11-22 | 2013-06-26 | 美的集团股份有限公司 | Cooling device used for electric rice cooker and electric rice cooker provided with the same |
| CN103445669A (en) * | 2013-08-31 | 2013-12-18 | 广东洛贝电子科技有限公司 | Electromagnetic electric-pressure cooker |
| CN203563256U (en) * | 2013-10-08 | 2014-04-23 | 美的集团股份有限公司 | PCB board and household electrical appliance provided with same |
| CN104042119A (en) * | 2014-05-30 | 2014-09-17 | 深圳市鑫汇科股份有限公司 | IH rice cooker main control module and mainboard support |
| CN106642237A (en) * | 2016-12-29 | 2017-05-10 | 宁波方太厨具有限公司 | Electromagnetic range |
| CN208658908U (en) * | 2018-03-12 | 2019-03-29 | 佛山市顺德区美的电热电器制造有限公司 | Power panel portion for cooker is filled with and cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110267427A (en) | 2019-09-20 |
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